Stucco is not a problem for termites whatsoever. Now if what you are referring to as stucco is Dryvit, then yes that is a product that retain moisture and will definitely attract termites.

The house I live in now was Dryvit, before we closed I had the homeowner tear the entire exterior of the house off and replace it with Stucco, which is hardened concrete type finish. Dryvit has a Styrofoam backing that is normally 3/4 to 1" thick. Once they removed the Dryvit they ended up removing about half of the USB boards that was next to it because of mold. All in all, it cost them nearly $48,000 to replace the exterior of the house. I have been there now going on 11 years, and not one problem with the Stucco.

If the house you are looking at is Dryvit, the key thing to look for is to make sure that the Dryvit doesn't make contact anywhere with the ground. Me personally, I would not buy it if it was Dryvit. You will have a very hard to selling it down the road if you decide to move.